Willem, I decided to install your app as I could do with a check list - its the same scenario as you where my girlfriend will send me a list of shopping!

Firstly, well done! The app works well, does the job and simple. Also, I like the improvements you've made from the beginning (striking the text out & rotation). I could only find one bug, when sorting the list A-Z the list disappears. Pressing the button again (to deselect the sort) doesnt bring the text back. I can only get it back by pressing the checked to bottom button.

^^ Hope that makes sense!

Also, I have one suggestion. If you have the sort A-Z on and then you edit the list, it should auto sort them again when saving the list - this might be the same for the checked ones to the bottom button but I've not checked it.

If any of that doesnt make sense let me know and i'll explain it better!